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Without a doubt, ufology and the search for extraterrestrial intelligences and clues are among the most fascinating concepts in the process of human understanding. It probably began in unknown times, when early humans were unexpectedly "confronted" with aliens and UFOs. This is evidenced, for example, by petroglyphs and figures that presumably depict such encounters or what they saw. Pre-astronautics, which we will come to later, even assumes that extraterrestrial intelligences visited Earth in the prehistory of humanity and significantly influenced human civilization. Ancient myths and legends of gods were also studied for this purpose.Similar theories assume that there are still remnants and survivors of an ancient "super-civilization" that, after a massive "war of the gods or a global catastrophe," could exist in very remote areas or even in underground bases/worlds on Earth, on the Moon, Mars, and hidden in Antarctica. Then theres the hypothesis that UFOs could also originate from other dimensions (time travel) or parallel worlds. Do portals belong to this category?With the advent of manned space travel and the advent of television, interest in possible intelligent extraterrestrials flying through space with their spaceships and advanced technology, and even visiting Earth, rapidly grew worldwide. The fact that there are extraterrestrials with good or evil intentions is part of the creation of every single science fiction story. There are already tens of thousands of books and science fiction novels worldwide, as well as treatises and discussions, all dealing with ufology and extraterrestrials.Read here how I got into ufology and my conclusion.